Embed the ISA and savings tax calculator

For a credit union's members page, a money guidance charity, a pensioners' group newsletter or a personal finance blog: readers type their income and savings and see what the interest costs them in tax this year and from April 2027, against a cash ISA.

<iframe src="https://isasums.co.uk/embed/isa-calculator/" title="ISA or taxable account calculator" width="100%" height="900" style="border:0;max-width:1000px" loading="lazy"></iframe>

Conditions: keep the credit line under the calculator visible, use it as it is and without warranty, and do not present it as advice from your organisation. When the rules change, for instance when the 2028/29 rates are set, the embedded calculator updates itself.

Nothing your readers type reaches us and the frame sets no cookie. Questions: contact.

Tax year 2026/27 (6 April 2026 to 5 April 2027), with the 2027/28 rules already in law, rules last read on 19 October 2026. Worked out from the rules in law on the date shown; not financial advice, and no product is recommended.